DuraVent DuraTech 7" Galvalume Insulated Wall Thimble w36.13 refractory bricks (fireplace only***)

refractory bricks (fireplace only***)

You will have to replace your flat screen television long before you ever have to replace this lift: the Whisper Lift® II is built to last

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Model OP42FB Vent Type Ventless Front Flush Material Stainless Steel Opening 42" W x 16" H Framing 45" W x 36" H x 19" D

DuraVent DuraTech 7" Galvalume Insulated Wall Thimble w36.13 refractory bricks (fireplace only***)With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney cool, while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys for an extra margin of safety. No locking bands or mechanical fasteners required. DuraTechs sleek 1" wall design provides for easy installations through 16" on